Multi-layer (POF) Polyolefin Shrink film is clear and transparent, with protective function which can prevent the products appearance from being affected by dust, moisture and strange smell. POF`s shrink rate is so high that it fits for packing the products with all kinds of shapes and sizes. POF with good function of environmental protection, harmless and nonpoisonous, can substitute PVC film, especially used in packing of food, medicine and exports.